Also the same act that makes cruise ship itineraries sometimes weirder and maybe more expensive than they need to be, because the Jones Act applies to passenger

Also the same act that makes cruise ship itineraries sometimes weirder and maybe more expensive than they need to be, because the Jones Act applies to passenger travel as well as cargo. (Cruise ships can't just do Florida to Puerto Rico to Florida nor California to Hawaii to California, for two instances, unless they are US flagged and most of the cruise ship companies are not US flagged. To be fair, the company flags that aren't historic like Holland America's actual Dutch origins are mostly tax dodges, but the Jones Act isn't the best way to discourage tax dodgers.)